IPhone Web Application

I have been currently working on a web application for the iPhone in my spare time.  It feeds off the data feed of a popular kiosk based video rental site.
Some of the interesting things I have used in the endeavor have been a proxy application to facilitate cross domain requests.  The use of the iPhone/Safari's built in database for local client storage as well as data combination.
This allowed for the caching of large datasets to decrease overall bandwidth.
I have a few finishing touches before it becomes finalized.